Mercurial > dive4elements > river
comparison flys-backend/src/main/java/de/intevation/flys/importer/AtFileParser.java @ 198:d980e545ccab
Added import code for importing discharge tables.
flys-backend/trunk@1537 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
|---|---|
| date | Tue, 22 Mar 2011 12:15:18 +0000 |
| parents | |
| children | 6b231041dc18 |
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| 197:c0dcc2357106 | 198:d980e545ccab |
|---|---|
| 1 package de.intevation.flys.importer; | |
| 2 | |
| 3 import java.io.BufferedReader; | |
| 4 import java.io.File; | |
| 5 import java.io.FileInputStream; | |
| 6 import java.io.InputStreamReader; | |
| 7 import java.io.IOException; | |
| 8 import java.math.BigDecimal; | |
| 9 import java.text.NumberFormat; | |
| 10 import java.text.ParseException; | |
| 11 | |
| 12 import org.apache.log4j.Logger; | |
| 13 | |
| 14 import de.intevation.flys.importer.ImportDischargeTable; | |
| 15 import de.intevation.flys.importer.ImportDischargeTableValue; | |
| 16 | |
| 17 | |
| 18 public class AtFileParser { | |
| 19 | |
| 20 public static final String ENCODING = "ISO-8859-1"; | |
| 21 | |
| 22 private static Logger logger = Logger.getLogger(AtFileParser.class); | |
| 23 | |
| 24 private static NumberFormat nf = NumberFormat.getInstance(); | |
| 25 | |
| 26 | |
| 27 public AtFileParser() { | |
| 28 } | |
| 29 | |
| 30 | |
| 31 public ImportDischargeTable parse(ImportGauge gauge) throws IOException { | |
| 32 | |
| 33 File file = gauge.getAtFile(); | |
| 34 | |
| 35 logger.info("parsing AT file: " + file); | |
| 36 | |
| 37 BufferedReader br = null; | |
| 38 | |
| 39 String line = null; | |
| 40 | |
| 41 boolean beginning = true; | |
| 42 | |
| 43 ImportDischargeTable dischargeTable = new ImportDischargeTable(); | |
| 44 | |
| 45 try { | |
| 46 br = new BufferedReader( | |
| 47 new InputStreamReader( | |
| 48 new FileInputStream(file), ENCODING)); | |
| 49 | |
| 50 while ((line = br.readLine()) != null) { | |
| 51 String tmp = line.trim(); | |
| 52 | |
| 53 if (tmp.length() == 0) { | |
| 54 continue; | |
| 55 } | |
| 56 | |
| 57 if (tmp.startsWith("#! name=")) { | |
| 58 // XXX Skip the name, because we don't know where to save | |
| 59 // it at the moment | |
| 60 | |
| 61 //String name = tmp.substring(8); | |
| 62 continue; | |
| 63 } | |
| 64 | |
| 65 if (tmp.startsWith("#") || tmp.startsWith("*")) { | |
| 66 continue; | |
| 67 } | |
| 68 | |
| 69 String[] splits = tmp.replace(',', '.').split("\\s+"); | |
| 70 | |
| 71 if ((splits.length < 2) || (splits.length > 11)) { | |
| 72 logger.warn("Found an invalid row in the AT file."); | |
| 73 continue; | |
| 74 } | |
| 75 | |
| 76 String strW = splits[0].trim(); | |
| 77 double W = nf.parse(strW).doubleValue(); | |
| 78 | |
| 79 /* shift is used to differenciate between lines with | |
| 80 * exactly 10 Qs and lines with less than 10 Qs. The shift | |
| 81 * is only modified when it is the first line. | |
| 82 */ | |
| 83 int shift = 0; | |
| 84 | |
| 85 if (splits.length != 11 && beginning) { | |
| 86 shift = 11 - splits.length; | |
| 87 } | |
| 88 | |
| 89 | |
| 90 for (int i = 1; i < splits.length; i++) { | |
| 91 double iW = W + shift + i; | |
| 92 double iQ = nf.parse(splits[i].trim()).doubleValue(); | |
| 93 | |
| 94 dischargeTable.addDischargeTableValue( | |
| 95 new ImportDischargeTableValue( | |
| 96 new BigDecimal(iQ/100.0), | |
| 97 new BigDecimal(iW/100.0))); | |
| 98 } | |
| 99 | |
| 100 beginning = false; | |
| 101 } | |
| 102 } | |
| 103 catch (ParseException pe) { | |
| 104 logger.warn(pe.getMessage()); | |
| 105 } | |
| 106 finally { | |
| 107 if (br != null) { | |
| 108 br.close(); | |
| 109 } | |
| 110 } | |
| 111 | |
| 112 logger.info("Finished parsing AT file: " + file); | |
| 113 | |
| 114 return dischargeTable; | |
| 115 } | |
| 116 } | |
| 117 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |